Institute Newton C. Braga

Circuit Bench

Cable test (CB7907E)
We found this cable tester in a Popular Electronics from the 90s. The circuit uses a connector...
Long Intervals RC Timer TL081 (CB15311E)
This circuit is from Motorola's 1993 Linear Interface ICs. The circuit must be powered by a...
Twin-T Oscillator (CB12697E)
Twin- T oscillators can be used to produce sinusoidal signals in the audio track with good...